Date: Mon, 17 Aug 2009 12:22:00 GMT From: Ana Kukec <anchie@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 167442 for review Message-ID: <200908171222.n7HCM0Oo045719@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=167442 Change 167442 by anchie@anchie_malimis on 2009/08/17 12:21:47 Set socket options for the packets that are going back to kernel. Affected files ... .. //depot/projects/soc2009/anchie_send/send_0.2/sendd/net.c#25 edit Differences ... ==== //depot/projects/soc2009/anchie_send/send_0.2/sendd/net.c#25 (text+ko) ==== @@ -176,6 +176,8 @@ if (rtm->rtm_flags & M_MCAST) DBG(&dbg_snd, "M_MCAST!"); + DBG_HEXDUMP(&dbg_snd, "Sending back to kernel: ", rtm, rtm->rtm_msglen); + if (send(sndsock, rtm, b->len, 0) < 0) { DBG(&dbg_snd, "Failed to send routing message back to kernel."); perror("Failed"); @@ -274,7 +276,7 @@ applog(LOG_ERR, "%s: read: %s", __FUNCTION__, strerror(errno)); goto done; } else - DBG(&dbg_snd, "%d bytes received on routing socket.", n); + DBG(&dbg_snd, "%d bytes received on routing socket. (%d)", n, b->rem); b->len = n; @@ -396,7 +398,7 @@ int snd_net_init(int *icmp6socket, int *sndsocket) { - int v; + int v, off; struct icmp6_filter filter; #ifdef DEBUG struct dlog_desc *dbgs[] = { @@ -440,7 +442,15 @@ __FUNCTION__, strerror(errno)); return (-1); } - + + /* Tell the kernel to not send us back our own rt messages. */ + off = 0; + if (setsockopt(sndsock, SOL_SOCKET, SO_USELOOPBACK, &off, sizeof(off)) < 0) { + applog(LOG_ERR, "%s: setsock(sndsock, SO_USELOOPBACK, off) " + "failed: %s.", __func__, strerror(errno)); + return(-1); + } + ICMP6_FILTER_SETBLOCKALL(&filter); ICMP6_FILTER_SETPASS(ICMP6_SND_CPS, &filter); ICMP6_FILTER_SETPASS(ICMP6_SND_CPA, &filter);
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